Incinerator



Oct. l2, 1937. c. J. RoDMAN 2,095,452

INCINERATOR Filed Jan. 28, 1956 3 Sheets-Sheet l C. J. RODMANINCINERATOR Oct. 12, 1937.

Filed Jan. 28, 1936 5 Sheets-Sheet 2 Z0 y INVEDITOR Oct. l2, 1937. c. J.RoDMAN 2,095,452

INCINERATOR Filed Jan. 28, 1936 3 Sheets-Sheet 5 @000mm Q 0 Q Q0@ 1 Q QQ Q @1 Q o Q Q Q Q Q 0 Q., Q Q 3 0 Q Q o O Q 0 Q @@000@ o 0 Q o Q 6` Q@@@QQQ Q Q Q5); Q 0 @9000 n\\\\\\\\\\\\\\\`x\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\L\\\\\Z5 I l0 A M 6 VENTR ,M4/MMM Patented Oct. 12, 1937 UNITED STATES PATENTCFFICE INCINERATOR Clarence J. Rodman, Alliance, Ohio ApplicationJanuary 28, 1936, Serial No. 61.184

3 Claims.

This invention relates to incinerators and, in particular, to domesticincinerators for consuming household rubbish and garbage.

Domestic incinerators as previously known, have usually required theburning of fuel other than rubbish or garbage, in order to maintaincombustion of the latter. DiiTiculty has also been experienced withdevices of this kind smoking, particularly in warm weather when thestack draft is reduced. Little or no consideration, furthermore, hasbeen given to eliminating the re hazard or complying with underwritersrequirements.

It is an object of my invention therefore, to overcome these variousobjections and provide a domestic incinerator having additional featuresof novelty and utility which will become more apparent as the followingdetailed description proceeds.

In accordance with my invention, I provide an incinerator havingseparate compartments or chambers for receiving wet refuse or garbage,and rubbish, or relatively dry waste matter. These compartments are soarranged that combustion of the rubbish facilitates the drying out ofthe wet refuse or garbage to render it combustible. The construction issuch that the air for combustion is preheated which further aids thedesiccation of the wet refuse. A special provision is also made toprevent smoking even though combustion proceeds at such a relatively lowrate that only a small stack draft is created. Separate doors areprovided for the rubbish and garbage compartments and these doors areself closing, thus avoiding re hazards and complying with underwritersstandards.

For a complete understanding of the invention reference is made to theaccompanying drawings lllustrating a preferred embodiment, although itwill be recognized that changes in the construction described andillustrated herein may be made within the scope of my broader claims.

In the drawings:

Figure 1 is a plan view;

Fig. 2 is a sectional view along the line II-II of Fig. 1;

Fig. 3 is a sectional view along the line III-III of Fig. 1; and

Fig. 4 is a sectional view taken along the line IV--IV of Fig. 3.

Referring now in detail to the drawings, the incinerator comprises abase plate I0, a cap plate II and side Walls I2. The bottom plate andcap plate are anged upwardly and downwardly respectively and the upperand lower edges of the side walls are received within the flanges. Theside Walls I2 are simply flat sheets lapped and bolted together as shownin Fig. 4. Draft inlet louvers I3 are pressed out of the side walls fora purpose which will be explained later.

Tie rods I4 connect the base plate and cap plate. A grate ring I5 issupported on spacer sleeves I6 surrounding the lower endsv of the tierods I4. The ring I5 has depending lugs I 'I slotted as` at I8. A grateI9 has a downwardly extending pivot movable in the slot I8 in one of thelugs I'l. Opposite the pivot 20 the grate I9 has a lug 2|. An operatinghandle 22 extends through the slot in the other lug I'l into the lug 2l.The handle 22 extends through a slot in the side wall I2. A spring 23 iscompressed between the side wall through which the handle 22 eX- tendsand a back-up washer and cotter pin 24 (see Fig. 4). The spring providessuicient friction on the side wall to hold the grate in position. Theaxis of the handle 22 and the pivot 20 is slightly eccentric relative tothegrate I9 so that it is biased to one position but may be manuallytilted for dumping.

An ash pan 25 is slidable on the base plate I9 between raised guide ribs26.

The combustion chamber above the grate isV enclosed by a cylinder 21having openings 28 spaced circumferentially thereof near the top. Thecylinder 21 is positioned by flanges 29 and 30 on the grate ring I5 andcap plate I I respectively.

A main smoke pipe connection 3I extends through one side wall I2 and thecylinder 21. A smaller auxiliary smoke pipe connection 32 is similarlymounted near the top of the incinerator. Connections 3| and 32 both leadtothe chimney or stack.

A generally V-shaped perforated baille 33 extends upwardly from thegrate ring I5 to a point just below the auxiliary connection 32, andoverlies the main connection 3 I. A perforated transverse division wall34 is removably positioned within the cylinder 2l and extends from alevel above the grate upwardly to a level below the auxiliary connection32. The wall 34 may be supported in the position shown by any convenientmeans such as pins (not shown) extending radially of the cylinder 2'Iunder the wall. As the latter is shown in a sloping position, it willnaturally wedge itself into position if supported r from points on thesides adjacent the bottom thereof. 'I'he wall 34 separates the garbageand rubbish chambers, the former being between the rest of the spacewithin the cylinder 2l.

The cap plate ll is provided with a circular hole 35 the periphery ofwhich has an inwardly extending flange 36. Semi-circular doors 31 and 38are hinged on a shaft 39 extending transversely of the hole 35, thedoors having ears 40 with holes for receiving the shaft 39. Operatingfinn gers 4| are secured to the shaft 39 andare effective to raise thedoors 31 and 38 alternately when the shaft-I 39 is rocked-in oppositedirections by means of a handle 42. Avcover strip 43 overlies the spacebetween the doors 31 and 38. It will be apparent that the shaft 39 is insubstan- .tially the same vertical plane as the upper edge of thedivision wall 34. 'Ihe doors 38 and 31 when opened thus permit thedeposit of rubbish and garbage respectively into the chambers providedtherefor indicated generally by reference numerals 44 and 45.

The operation of the incinerator will probably be apparent from theforegoing description.

When suiiicient amounts of rubbish and wet garbage have been accumlatedin the compartments 44 and 45 to require disposition, the door 38 isopened and the rubbish in the chamber 44 is lighted. Prior to lightingthe rubbish, there is usually a slight stack draft which induces a flowof air in through the louvers I3, the openings 28 and downwardly overthe garbage in the chamber out through the connection 3|. This naturaldraft exerts a continuous drying effect on the garbage even though thereis no combustion taking place in the incinerator. When the rubbishstarts to burn, however, the draft is considerably increased. Theproducts of combustion ow first through the auxiliary connection 32 tothe flue, greatly increasing whatever nattural stack draft may exist.This increased stack draft draws the products of combustion downwardlythrough the rubbish in the chamber 44 and the garbage in the chamber 45and out of the main flue connection 3| because of its greater size. Theflow of combustion gases through the garbage causes the latter to bethoroughly dried and fed downwardly toward the grate where it iscompletely burned because of the high temperature maintained at thatpoint by combustion of the rubbish. The baille plate 33 preventsclogging of the flue connection 3| and permits free flow of products ofcombustion over the garbage and into the flue. As the rate of combustiondecreases because of consumption of the rubbish and garbage, the stackdraft will likewise decrease, but the incinerator will not smoke evenso, because the auxiliary flue connection 32 is effective to conduct tothe ilue the products of combustion formed in the lastA stages ofburning.

The air i'lowlng through the inlet louvers i3 and upwardly around thecylinder 31 is pre-heated before entering the cylinder through the holes28 and is thus made more effective in ensuring rapid drying of the wetgarbage and complete final combustion thereof.

Numerous advantages of the invention have already been mentioned. Inaddition to those, it is light in weight and, therefore, relativelyinexpensive to manufacture, yet is amply strong for the service requiredof it. It accomplishes the complete disposition of household rubbish andgarbage without burning other fuel. The device is very simple to operateand requires little or no attention.

Although I have illustrated and described but one preferred form of theinvention, it will be apparent that changes in the constructiondescribed may be made without departing from the spirit of the inventionor the scope of the appended claims.

I claim:

l. An incinerator comprising a casing, a wall spaced inwardly thereofforming a combustion chamber, a partition extending across the chamber,doors in the top of the casing opening into the spaces on opposite sidesof the partition, a ue connection adjacent the bottom of the chamber, anair inletadjacent the top thereof, and air inlet ports in the casing.

2. In an incinerator, a grate, an enclosure extending upwardlytherefrom, an auxiliary smokepipe connection adjacent the top of saidenclosure, a. main smoke-pipe connection adjacent the grate, aperforated baille extending upwardly in front of the main smoke-pipeconnection providing a down-draft flue, means dividing the space abovethe grate into a compartment adjacent said baille for wet garbage, and acompartment spaced therefrom for dry rubbish whereby the draft and heatproduced by-combustion of the latter will dry said garbage to acombustible state.

3. The combination defined by claim 2 characterized by said dividingmeans being disposed at an angle to the vertical and having its lowerend closely adjacent said baille providing therebetween a hopper with arestricted outlet.

CLARENCE J. RODMAN.

